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Mathematics 20 Online
OpenStudy (anonymous):

Erin has scanned a 4 × 5-inch postcard, and she wants to reduce it to make a graphic for her Web site. She will use a scale factor of 1 in. = 2 cm. What will be the dimensions of the graphic?

OpenStudy (anonymous):

um, that isnt negative 5 is it?

OpenStudy (anonymous):

well...to solve this problem you have to reduce the inches into centimeters, hence by ironically multiplying. yes, most of the times you divide, but to make it into so centimeters we must MULTIPLY!111

OpenStudy (anonymous):

since im lazy im not going to do the work. an inch = 2.57 centimeters. so you have 1 inch - 2 centimeters yes? multiply it by two, and then multiply the inches, if you got any problems tell me.

OpenStudy (anonymous):

. 2 cm × 2.5 cmB. 2 cm × 3 cmC. 6 cm × 7 cmD. 8 cm × 10 cm

OpenStudy (anonymous):

it's multiple choices

OpenStudy (anonymous):

A. 2 cm × 2.5 cm B. 2 cm × 3 cm C. 6 cm × 7 cm D. 8 cm × 10 cm

OpenStudy (anonymous):

Sorry, I don't do homework.

OpenStudy (anonymous):

Here, let me clear it up.

OpenStudy (anonymous):

Just need a explanation

OpenStudy (anonymous):

you could of asked you know >.<

OpenStudy (anonymous):

the answer is B because there she is making it so that per every inch, in the computer theres going to be 2 centimeters.

OpenStudy (anonymous):

Hence we can say that the post card is just a scale, where every 1 inch = 2 centimeters somewhere else.

OpenStudy (anonymous):

OH i see thanks

OpenStudy (anonymous):

welcome :D

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